Mgmtd makes use of libyang's internal ietf-yang-library module to add
support for said module to FRR management. Previously, mgmtd was loading
this module explicitly; however, that required that libyang's
`ietf-yang-library.yang` module definition file be co-located with FRR's
yang files so that it (and ietf-datastore.yang) would be found when
searched for by libyang using FRRs search path. This isn't always the
case depending on how the user compiles and installs libyang so mgmtd
was failing to run in some cases.
Instead of doing it the above way we simply tell libyang to load it's
internal version of ietf-yang-library when we initialize the libyang
context.
This required adding a boolean to a couple of the init functions which
is why so many files are touched (although all the changes are minimal).
Signed-off-by: Christian Hopps <chopps@labn.net>
Implement common code for debug config output and remove daemon-specific
code that is duplicated everywhere.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
The debug library allows to register a `debug_set_all` callback which
should enable all debugs in a daemon. This callback is implemented
exactly the same in each daemon. Instead of duplicating the code, rework
the lib to allow registration of each debug type, and implement the
common code only once in the lib.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
This commit introduces the MGMT Transaction framework that takes
management requests from one (or more) frontend client sessions,
translates them into transactions and drives them to completion
in co-oridination with one (or more) backend client daemons
involved in the request.
This commit includes the following functionalities in the changeset:
1. Introduces the actual Transaction module. Commands added related to
transaction are:
a. show mgmt transaction all
2. Adds support for commit rollback feature which stores upto the 10
commit buffers. Each commit has a commit-id which can be used to
rollback to the exact configuration state.
Commands supported for this feature are:
a. show mgmt commit-history
b. mgmt rollback commit-id COMMIT_ID
3. Add hidden commands to enable record various performance metrics:
a. mgmt performance-measurement
b. mgmt reset-statistic
Co-authored-by: Pushpasis Sarkar <pushpasis@gmail.com>
Co-authored-by: Abhinay Ramesh <rabhinay@vmware.com>
Co-authored-by: Ujwal P <ujwalp@vmware.com>
Signed-off-by: Yash Ranjan <ranjany@vmware.com>
This commit introduces the MGMT Backend Interface which can be used
by back-end management client daemons like BGPd, Staticd, Zebra to
connect with new FRR Management daemon (MGMTd) and utilize the new
FRR Management Framework to let any Frontend clients to retrieve any
operational data or manipulate any configuration data owned by the
individual Backend daemon component.
This commit includes the following functionalities in the changeset:
1. Add new Backend server for Backend daemons connect to.
2. Add a C-based Backend client library which can be used by daemons
to communicate with MGMTd via the Backend interface.
3. Maintain a backend adapter for each connection from an appropriate
Backend client to facilitate client requests and track one or more
transactions initiated from Frontend client sessions that involves
the backend client component.
4. Add the following commands to inspect various Backend client
related information
a. show mgmt backend-adapter all
b. show mgmt backend-yang-xpath-registry
c. show mgmt yang-xpath-subscription
Co-authored-by: Pushpasis Sarkar <pushpasis@gmail.com>
Co-authored-by: Abhinay Ramesh <rabhinay@vmware.com>
Co-authored-by: Ujwal P <ujwalp@vmware.com>
Signed-off-by: Yash Ranjan <ranjany@vmware.com>
This commit introduces the Frontend Interface which can be used
by front-end management clients like Netconf server, Restconf
Server and CLI to interact with new FRR Management daemon (MGMTd)
to access and sometimes modify FRR management data.
This commit includes the following functionalities in the changeset:
1. Add new Frontend server for clients connect to.
2. Add a C-based Frontend client library which can be used by Frontend
clients to communicate with MGMTd via the Frontend interface.
3. Maintain a frontend adapter for each connection from an appropriate
Frontend client to facilitate client requests and track one or more
client sessions across it.
4. Define the protobuf message format for messages to be exchanged
between MGMTd Frontend module and the Frontend client.
5. This changeset also introduces an instance of MGMT Frontend client
embedded within the lib/vty module that can be leveraged by any FRR
daemon to connect to MGMTd's Frontend interface. The same has been
integrated with and initialized within the MGMTd daemon's process
context to implement a bunch of 'set-config', 'commit-apply',
'get-config' and 'get-data' commands via VTYSH
Co-authored-by: Pushpasis Sarkar <pushpasis@gmail.com>
Co-authored-by: Abhinay Ramesh <rabhinay@vmware.com>
Co-authored-by: Ujwal P <ujwalp@vmware.com>
Signed-off-by: Yash Ranjan <ranjany@vmware.com>
Features added in this commit:
1. Bringup/shutdown new management daemon 'mgmtd' along with FRR.
2. Support for Startup, Candidate and Running DBs.
3. Lock/Unlock DS feature using pthread lock.
4. Load config from a JSON file onto candidate DS.
5. Save config to a JSON file from running/candidate DS.
6. Dump candidate or running DS contents on the terminal or a file in
JSON/XML format.
7. Maintaining commit history (Full rollback support to be added in
future commits).
8. Addition of debug commands.
Co-authored-by: Yash Ranjan <ranjany@vmware.com>
Co-authored-by: Abhinay Ramesh <rabhinay@vmware.com>
Co-authored-by: Ujwal P <ujwalp@vmware.com>
Signed-off-by: Pushpasis Sarkar <pushpasis@gmail.com>
